HRCT TEMPORAL BONE NON CONTRAST

Last Updated on June 24, 2022 by Nabilah Nawi

Anatomy of Thorax, Abdomen and Pelvis

Image taken from Microbe Notes

Appearance of HRCT TEMPORAL BONE NON CONTRAST Images

Auto scroll of CT TAP image in axial cut.

Examination Overview

Protocol Structure

00_Inner Ear (Adult)

    • Topogram
    • Non Contrast (vertex skull to the mid mandible)
    •  

Topogram

  • Position the patient in head first supine position.
  • Align the patient in Mid-Sagittal plane of the table.
  • Position the transverse laser light beam at the vertex of skull to start the topogram.
  • Head rest must in flat.

Topogram Parameters

  • Topogram length: 256 mm
  • Slice: 0.6 mm
  • Scanning direction: Craniocoudal
  • Tube position: Lateral
  • Stop the topogram scanning when the scanning reach / pass over the mid of mandible

Non Contrast

  • Plan the Scan FOV (SFOV) box at topogram image
  • Set the top line at the level upper frontal sinus 
  • Set the bottom line at the level of lower maxillary sinus
  • Ensure the lateral line to cover patient’s head outline.

Scanning Parameters

  • kV: 120 kV
  • mAs: Tube Current Modulation (TCM)
  • Scanning Direction: Craniocaudal
  • Scan Delay: 2 s
  • Slice: 2.0mm
  • Image Comment: –
  • Pitch: 0.8
  • Quality Reference mAs : 230

Reconstruction of TAP Non Contrast

Recon 1Recon 2Recon 3Recon 4
NameInnerEar 2.0 H60sInnerEar 0.6 H60sInnerEar 2.0 H30sInnerEar 0.6 H30s
Slice Thickness2.0 mm0.6 mm2.0 mm0.6 mm
Increment2.0 mm0.4 mm2.0 mm0.4 mm
KernelH60s sharp FRH60s sharp FRH30s medium smoothH30s medium smooth
WindowingInner EarInner EarLarynxLarynx

Series of Images Send to PACS

  1. Topogram 0.6 T80f
  2. InnerEar 2.0 H60s
  3. InnerEar 0.6 H60s
  4. InnerEar 2.0 H30s
  5. InnerEar 0.6 H30s
  6. Patient Protocol

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